B[superscript 0] meson decays to ρ[superscript 0]K[superscript *0], f[subscript 0]K[superscript *0], and ρ[superscript -]K[superscript *+], including higher K[superscript *] resonances
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Lees-2012-B-0 meson decays to rho.pdf
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Author(s)
Dujmic, Denis
Sciolla, Gabriella
Cowan, Ray F
Date Issued
April 2012
Journal
Physical Review D
Publisher
American Physical Society
Citation
J. P. Lees et al. (BABAR Collaboration). "B[superscript 0] meson decays to ρ[superscript 0]K[superscript *0], f[subscript 0]K[superscript *0], and ρ[superscript -]K[superscript *+], including higher K[superscript *] resonances" Physical Review D 85, 072005 (2012). © 2012 American Physical Society
Version
Final published version
Abstract
We present branching fraction measurements for the decays B[superscript 0]→ρ[superscript 0]K[superscript *0], B[superscript 0]→f[subscript 0]K[superscript *0], and B[superscript 0]→ρ[superscript -]K[superscript *+], where K[superscript *] is an S-wave (Kπ)[subscript 0][superscript *] or a K[superscript *](892) meson; we also measure B[superscript 0]→f[subscript 0]K[subscript 2][superscript *](1430)[superscript 0]. For the K*(892) channels, we report measurements of longitudinal polarization fractions (for ρ final states) and direct CP violation asymmetries. These results are obtained from a sample of (471.0±2.8)×10[superscript 6] BB̅ pairs collected with the BABAR detector at the PEP-II asymmetric-energy e[superscript +]e[superscript -] collider at the SLAC National Accelerator Laboratory. We observe ρ[superscript 0]K*(892)[superscript 0], ρ[superscript 0](Kπ)[subscript 0][superscript *0], f[subscript 0]K*(892)[superscript 0], and ρ[superscript -]K*(892)[superscript +] with greater than 5σ significance, including systematics. We report first evidence for f[subscript 0](Kπ)[subscript 0]*[superscript 0] and f[subscript 0]K[subscript 2]*(1430)[superscript 0], and place an upper limit on ρ[superscript -](Kπ)[subscript 0]*[superscript +]. Our results in the K*(892) channels are consistent with no direct CP violation.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.85.072005
